Method and device for repeatedly retransmitting paging message

Abstract

The invention discloses a method for repeatedly retransmitting a paging message. The method comprises the following steps of: judging whether an immediate assignment message exists or not; if so, sending the immediate assignment message, and otherwise, judging whether the paging message exists or not; if so, sending the paging message, placing the paging message after sending into a retransmission queue with highest propriety in M retransmission queues with the preset maximum number of retransmission times of M as a retransmission message, and setting the number of retransmission attempt times of the retransmission message as 0; otherwise, deleting the retransmission messages with the number of the retransmission attempt times of M in all the retransmission queues, and sending the retransmission messages in the retransmission queues according to the priority sequence of the retransmission queues; and adding 1 to the number of the retransmission attempt times of the retransmission messages in all the retransmission queues, and returning to judge whether the immediate assignment message exists or not. The invention provides the method and a device for repeatedly retransmitting the paging message, which can ensure the timeliness of the paging message and further improve the success rate of paging.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method and device for retransmitting a paging message multiple times. Background technique [0002] In the GSM mobile communication system, the paging success rate directly affects user experience and traffic volume, and is an important indicator for measuring network performance. Due to the complexity and time variability of the wireless environment, one or several paging messages may not be successfully received by the terminal due to downlink interference, terminal demodulation failure, etc. Therefore, it is necessary for the network side to resend the paging messages to improve the The probability of the terminal receiving the paging message, thereby improving the paging success rate. For the paging retransmission method, there are mainly the following implementation methods at present. [0003] Method 1: Port A retransmits the paging message. In order to reduce...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the retransmission interval is large, the timeliness of the paging message is poor, and the connection delay is large

[0004] Method 2: The BTS (Base Transceiver Station, Base Transceiver Station) side implements paging message retransmission. There are two main means of implementation. The first one is that the number of paging message retransmissions is fixed. The disadvantage of this method is that paging messages are not fully considered. The timeliness of the paging message, because the common control channel CCCH also sends an immediate assignment message, and generally speaking, the priority of the immediate assignment message is higher than that of the paging message, so it is uncertain when the paging message will be resent. The fixed number of retransmissions may cause the paging message retransmitted by the air interface to lose its timeliness (maybe the caller has hung up at this time)

The second is to increase the priority of the paging message and resend the paging message at the same time. The disadvantage of this method is that it affects the timeliness of sending the immediate assignment message, which leads to multiple accesses of the terminal and an increase in the SD assignment failure rate.

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